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Ex 2.2, 3 (i) - Chapter 2 Class 7 Fractions and Decimals
Last updated at April 18, 2024 by Teachoo
Chapter 2 Class 7 Fractions and Decimals
Concept wise
- Fractions
- Greater than, less than in fractions
- Addition and Subtraction of Fractions
- Addition and Subtraction of Fractions - Statement Questions
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Multiplication of Fractions
- Multiplication of Fractions - Statement Questions
- Division of Fractions
- Reciprocal of Fraction
- Decimal Numbers
- Greater than, less than in decimals
- Addition of Decimals
- Multiplication of Decimals
- Multiplication of Decimals - Statement Questions
- Division of Decimals
- Division of Decimals - Statement Questions
Transcript
Ex 2.2, 3 Multiply the following fractions: (i) 2/5 x 5 1/4 2/5 × 5 1/4 = 𝟐/𝟓 × (𝟓+𝟏/𝟒) = 2/5 × ((5 × 4 + 1 )/4) = 2/5 × ((20 + 1)/4) = 2/5 × 21/4 = (2 × 21)/(5 × 4) = 21/(5 × 2) = 21/10 Since Numerator > Denominator We will convert it into mixed fraction = 2 𝟏/𝟏𝟎
